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            <span id="intro-title">D3 Graph Theory</span><br />
            <span id="intro-tagline">Learn graph theory interactively.</span
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                In mathematics, graph theory is the study of graphs, which are
                mathematical structures used to model pairwise relations between
                objects. A graph in this context is made up of vertices, nodes,
                or points which are connected by edges, arcs, or lines.
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              <div class="quote-cite">&mdash; Wikipedia</div>
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              D3 Graph Theory is a project aimed at anyone who wants to learn
              graph theory. It provides quick and interactive introduction to
              the subject. The visuals used in the project makes it an effective
              learning tool.
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              And yes, it is an open-source project. Check the code at
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              <p>Yes. By the way, it's also open-source.</p>
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                Easy. Visuals make it easy for an average Joe to go through the
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                None. Very basic combinatorics and set theory might be useful,
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              The material is divided into several small units. Each unit
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                <a href="http://rkirsling.github.io/modallogic/" target="_blank"
                  >Modal Logic Playground</a
                >
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                >
              </li>
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                  >iconsandcoffee.com</a
                >
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